US2943799A - Valve and nozzle for a washing unit - Google Patents

Description

July 5, 1960 H. BODMER 2,943,799

VALVE AND NOZZLE FOR A WASHING UNIT Filed March l1, 1957 4 Sheets-Sheet 1 Fly. f

4 Sheets-Sheet 2 H. BODMER VALVE AND NOZZLE FOR A WASHING UNIT July 5, 1960 Filed March l1, 1957 July 5, 1960 H. BQDMER VALVE AND NozzLE FOR A WASHING UNIT 4 Sheets-Sheet 5 Filled March 11, 1957 July 5, 1960 H. BoDMER 2,943,799

VALVE AND NOZZLE FOR A WASHING UNIT Filed March. 11, 1957 4 Sheets-Sheet 4 y @Magix/4 ,United statement u 2,943,799 Patented July a invention relates to a washing unit, in particular for motors, machines and parts thereof;

i 'The Washing unit according to the invention is `characterized in that itv comprises a hood having a rotary table therein operable Ifrom outside; and that the hood fitted with an inspection window has mounted thereon sprayers which are swivelable to all sides so as to allow to sweep'not only a certain place, but to cover entire zones ofthe object being washed, further in that the' hood has allocated to it a heatable tank for the washing liquidand another tankfor' the rinsing liquid, which tanksareboth connectible on the one hand to the outlet 'troughV of thev hood via a three-'way cock, and on the otherI hand to the sprayers via a second three-way cock anda delivery pump. u

xi-Preferably, the hood may be provided with a lifting device adapted Yto raise it from the rotary table for the purpose of introducing and removing the object to be washed, the top of the rotary table being level with` the oor. y

Advantageously, also the delivery piping leading from the, pump to thev spray nozzles via a three-way cock may be selectively connectable to a main water line, whereby,` between the outlet branch and the three-way cock of the return pipes'leading to the washing and rinsing tanks, there is arranged a further three-way cock through" which the outlet' branch Vis selectively connectable to the return pipes or to a drain pipe leading to theopen, the plugsfof` these additional three-way cocks beingV interconnected so that upon connection ofthe delivery pipe' withthe main, the outlet branch or the rotary table communicates with the'drain piping leading -to the open, Whereas-upon connection of thedelivery pipe with the pump, the outlet branch communicates with the return alpes.

This design permits of removing coarse dirt, especially dirtpsoluble in water, without affecting the Washing liquidl primarily intended for loosening finer and oleiferous dirt, which liquid would be unnecessarily contaminated bythe coarseisoluble dirt in the material being washed.

jlurther, aiilter maybe advantageously incorporated in the closed circuit of the washing liquid. This has the advantage that, during operation of the washing ma- Fig. 3 is atop plan view of Fig. 2; r

Fig. 4 shows an axial section through the nozzle in open position; .Y u Y u l Fig. 5 shows anV axial section through the nozzle closed position; J Y

Fig. 6 shows the mounting of the rotary table on the central drain hub of the trough. v

Fig. 7 shows an lelevation of the washing unit ofthe second example of embodiment, with certain parts in vertical section, and

Fig. 8 is a top lview of the Washing unit with hood partly broken away. j

The washing unit shown in lFigs. 1-6 comprises a box 1 which is square'in plan view and has arranged thereover a hood 2 with a trough bounding the space between box and hood.f The hood 2 has a cylindrical jacketadjacent the edgejof the trough. Numeral 4 designates a circular-rotary table arranged within the hood'andro'- tatably mounted-in a bearing 8 Vwith a bushing 7-at a distance over the trough 3 by means of a central ver tical rotary axle `6 attached to the underside of the table in the hub 5 thereof. By interposition of spacer bush; ings 10, the bearing 8 lis iixed by screws 9 to theoritlc`e hub 12 of the trough 3 having the outlet 11 for the wash`l ing liquid. The hub 5 of the rotary table 4 is provided on the underside-with a bevel ring gear p13 engaging a bevel pinion 14. The latter is seated on the in ner end of a driving spindle 15 rotatably supported within a tubular bearing 16 which is fast on vthe trough, protrudes 4. Connectible to said rails 19 of the rotary table 4 are ersY 25 on the hoodall. In order to be able to shut the door 26, the rails 19" must be moved outwards according to the arrow a1 (Fig. 2) into their interrupted position. After opening thel door,` the rails 19 can lbe joined to the rails |19 by moving them in a direction op; posed to the -arrow a, whereupon the carriage 20 ma be moved in and out;

Two or more sprayers 28 located at different heights' in a recess 27 of the front Wall of the hood serve forI washing the motor M, the direction of spray being adjustable onto any desired place of the object to be washed.`

ample'of embodiment, partly in vertical section on the Y 29 denotes an inspectionrwindow which is arranged be- -tween the twofsprayers in the yfront wall ofthe recess and permits the object to be observed as it is washed. At both sides of the recess light ttings 30 are built into the front Wall of. the hood so that the object being Washed may be illuminated from two diierent sides. Arranged within. the lbox -1, on both sides, are two tanks 31 and 32 respectively, .each containing, say, 400 litres. Thetank 31 serves vfor receiving the Washingliquid, say, tri-` sodium phosphate, and the tank 32 for receiving a rins' ingliquid, say,water or a much diluted lye. Both liquids Vare heatable by 'electric heating elements built into the tanks and are kept at the required temperature by incorporated thermostats whichcontrol the electric cil-,y cuit of the heating elements.

Mounted on the outlet branch 12 of4 the trough 3 is a three-way cock 33, one return pipe 34 of which is connected to the tank 31, and the other pipe 35 to the tank Y32. The three-way cock 313 can be operated bymeansl of a handlever 37 through a spindle V316 protruding out of theifront wall of the box 1. In one end position of said lever 37 the outlet 11 of the trough 3 communicates with the tank 31, and in the other position with the tank 32. A second three-way` cock 38 .arranged beneath fthe threeway-cock 3 3 is connected on the one.. handfto thejtwo tanksSiI, 32 via two iiow branches 39, 40f,.and on .the other .hand to the llow pipe 41.- Thev cock 38. can be manipulated by means of a spindle 42 with h-andlever 43., which protrudes through the front wall of the box 1 so that in one end position of said lever, theow pipe communicates with-the tank 31, and in the other end position with the tank 32. The washing or rinsing liquid is supplied to the sprayers 28 through a. ow pipe 41A, -a pump 44 and a `delivery pipe 41' Vunder apressure of, say, 6 atmosphere gauge at an output of, say, SOUL/min. u.The sprayers are both of identical design. They have each a ball-shaped plug45 Vsupportedvrotatable'1to all sides between two sealing flanges 46, 47' designed as spherical sockets. i Each plug is associated witha service handle (through a valve stem) and a spray nozzle 49 of the two sprayers. When also rinsing is finished, upon closing the sprayers, the hood cover 26 is opened, and by turning the handwheel 17 the rotary table 4 can be set so that the rails thereof become re-aligned to the rails of the stand 21. Now the rails 19 are joined to the rails 19, and the carriage 270A with the Washed object can be moved out, again. Other objects may subsequently be washed in the same way.

The kservice levers 37 and 43V are preferably coupled to each other, so Vthat when the delivery pump 44 is connected to the tank 3'1 via three-way cock 38, .this tank at the same time is in connection with the drain trough 3, while the latter is connected-to the tank 32, if the connection of the delivery pump with the tank 32 is established via three-way cock 38.

In the second example of embodiment according to Figs. `7 and8,numeral 3 designates a trough whleh'iS coaxial thereto, which communicates with the plug hole 50. The sealing flange 46 is fast on the wall'of the recess 27 and carries four guide rods 51,.'on which the movable sealing tlange 47 is slidable lengthwise and is kept by screw-nuts 51 against the action of compression springs 52(-Fig. l) in sealing position on the plug 45 and together with this onl the sealing flange 46. The valve stem 48 ofthe service handle passes through sealing bellows 54 iivxed tothe opening 53 in the recess wall 27 and is turnable to yall sides from the middle position at an angle of V", i.e. through an arc of 50. By turning the valve stem 48 through 90 by means ofthe operating handle 55,

the plug can be moved from its open position into vthe closed position, or vice versa. The stationarily mounted sealing lianges 46 have the delivery or pressure pipe 41 connected thereto. In the open position of the plug, in which the T-handles 55 lie horizontal, the plug-holes 50 communicates with the connection bores 56 of the delivery pipe 41 in any position of swivelling of the service handles 55 or nozzles 49. 57 denotes aV branch for lling the tank with fresh lye. The usedY lye can be drained off through an outlet branch 58 fitted with closing nipple.

After filling the tanks with washing and rinsing liquids, the heating may be switched-on. Upon reaching the required operating temperature readable on a thermometer located in the iioor 59 and covered by a hood 2, which trough opens at its lowest point into a drain branch. 12- The hood 2 has a jacket 2a adjoining Vthe edge :of the. trough 3. 4 designates a circular rotary table arranged within the hood and which is rotatably Vsupported ina stationary bearing '8, at a distance above Vdile trough 3 by means of a central vertical rotary axle 6 mounted on the underside of the table. Removably placed into the rotary table are circular sector-shaped gratings 4a (Fig. 8) through which the dirt sprayed oil with the washing'or rinsing liquid can flow away freely. The space defined by the hood 2 and the rotary table 4 serves as Washingv space for the material brought on the table. Tov enable the washed object or material to be removed in and out, the hood 2 is provided with hydraulic pressure cylinders 60 which are connected to a pump aggregate 63 through pipes 61 and 62. By means of the pump aggregate ,the pressure cylinders 60 can be set under pressure, whereby the hood 2 can be lifted oli the rotary table and brought into the position as indicated in dotted lines in Fig. 7,

and adjustable on a thermostat, the unit is ready for service. The motor or machine parts to be washed are lifted onto the carriage 20 already on `the stand which, along with said object, is then moved into the washing space. Upon retraction of the rails 19 the hood door is closed. Now the lamps 30 are switched-on and theY washing may begin. To this effect the lever 37 is set to the tank 31 so as to allowthe washing lye collected in the trough 3 to return into the wash-lye tank 31 via three-way cock- 33. Accordingly, also the lever 43 is set to the wash-lye tank 31, so that the pump will draw the liquid therefrom to deliver it to the sprayers 28. If, for l instance, one first works with the lower sprayer, its operating handle 55 has to be turned from the vertical into the horizontal position, thus causing this sprayer to act. By turning the operating handle the jet of lye may be directed to any desired place of the object being washed, and this may be checked through the inspection window 28. During the washing, the rotary 'Y table 4 may be swivelled in either direction of rotation trough 3, there are two tanks 31 and 32, the 'tank -31- serving for taking a washing liquid, and the tank y32for taking a rinsing liquid. Fromthe tanks 31, 32 two return pipes 34, 35 lead to a three-way cock 33I whichA communicates with the drain branch 12 of the trough 3 via a duct 65 and another three-way cock 66.V Through the; three-.way cock 66 the outlet branch v12 isv connectible, on the one hand to the duct leading to the return pipes 34, 35, and on the other hand -to the drain pipe 67 #lead-- ing to the open. The three-way cock 33 can be actuatedV by a linkage 36, 37. In one end position of the threeway cock 33, theoutlet branch 12 is connected to the tank 31, and in the other position to the tank 32. A further three-way cock 38 is connected -via two How branches 39, 40, on the one hand to the two tanks 31,- 32,

and on the other hand to the ow pipe 41. The cock 3S is connected to the cock 33 through a `linkage 42 so that upon connection of the outlet branch withY thetank 31, the latter is connected to the pump 44fthrough the flow pipe 41.

The washing or rinsing uid can be `delivered to the` sprayers 28 through the pressure piping 41', 41" and a further ilexible pipe 68. Y

69 designates a further lthree-way cock tittedin the pressure or delivery pipe 41', by meansfof which the delivery pipe 41" may be .connected to thomain 70*` instead of to the delivery pipe 41 leading to the pump44.

Thereby the three-way cock 69 is connected to the three- Way co-ck 66 through a linkage 7:1 so that upon connection of the outlet branch 12 with the three-way cock 33 leading to the return pipes 34, 35, the delivery pipe 41" is connected to the delivery pipe 41' via three-way cock 69, whereas upon connection of the outlet branch 12 with the drain pipe 67 leading to the open, the delivery pipe 41" is connected to the main 70 via cock 69. In this case the sprayer nozzles 28 will be fed with main or tap Water which canbe discharged to the open or into the drains via drain pipe 67.

To prevent compact dirt, sprayed olf screws and the like, reaching the cocks, a lter is built into a shaft 72 adjoining the outlet of the trough 2. 'I'his lter is constituted by several circular sector-shaped lter baskets 73 which are removable from the shaft 72 for cleaning. By these filters not only coarse impurities sprayed off screws and the like will be retained, but moreover the washing and rinsing fluids will be continuously cleaned during operation.

Numeral 74 designates an electric motor which is operatively connected to the shaft 6 of the rotary table through a gearing 75. v

Instead of having the tanks 31., 32 and pump 44 arranged under door level, it is understood that they may also be located above the floor 59 at a suitable place at the side of the hood. Alternatively, instead of the three-way cock 69 for the main 70 being arranged after the pump 44, it could be arranged in the pipe 41v before the pump 44.

What I claim is:

A spray nozzle arrangement, comprising in combination, a valve housing having an inlet opening, an outlet aperture at one side, and an access aperture at the other side of said inlet opening and opposite .to said outlet aperture, said housing including a pair of complementary swivel bearing portions having their meeting faces disposed in a plane transversal of the planes of said apertures, and having said inlet opening provided in one of said bearing portions; connecting means for detachably fastening said bearing portions to each other; a supporting bracket portion extending from one of said swivel bearing portions in a plane adjacent to and substantially parallel to the plane of said access aperture and having an opening` substantially registering with said access aperture; a valve `body tting into said valve housing and having a passage therethrough with an inlet end and a spray discharge end, said valve body arranged swivelably in said valve housing between a closing position in which said inlet opening of said valve housing and said inlet end of said passage in said valve body are out of communication with each other and a plurality of open positions corresponding to respective swivel positions in each of which positions said spray end of said passage in said valve body is located within the area of the outlet aperture of said valve housing; sealing means effectively sealing the space between said valve housing and said valve body around said inlet opening in said valve housing and said inlet end of said passage in said valve body in any swivel position thereof relative to the valve housing; an actuating member extending from said valve body through said access aperture in the valve housing and through said registering opening in said bracket portion operable to position said valve member in any desired swivel position as Well as Vto control communication between said passage in the valve member and said opening and said inlet opening in the housing; and a bellows surrounding said actuating member and operatively connecting the same with the edge portion of said registering opening.

References Cited in the file of this patent UNITED STATES PATENTS 133,215 Endicott Nov. 19, 1872 164,448 Hallett June 15, 1875 1,310,733 Bore et al. July 22, 1919 1,746,609 Schellin Feb. 11, 1930 1,941,915 Rosenberger- Ian. 2, 1934 2,471,506 l Wiswall May 31, 1939 2,535,580 Kersten Dec. 26, 1950 FOREIGN PATENTS 1,626 Great Britain .Tune 10, 1857 933,433 France Dec. 17, 1947

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